Question: The following Prolog code defines a predicate P. (Remember that uppercase terms are variables, not constants, in Prolog.) P(X, [X|Y]). P(X, [Y|Z]) :- P(X, Z).

The following Prolog code defines a predicate P. (Remember that uppercase terms are variables, not constants, in Prolog.)

P(X, [X|Y]).

P(X, [Y|Z]) :- P(X, Z).

a. Show proof trees and solutions for the queries P(A,[2, 1, 3]) and P(2,[1, A, 3]).

b. What standard list operation does P represent?

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